Browse free open source Java Email Clients and projects below. Use the toggles on the left to filter open source Java Email Clients by OS, license, language, programming language, and project status.

  • The AI workplace management platform Icon
    The AI workplace management platform

    Plan smart spaces, connect teams, manage assets, and get insights with the leading AI-powered operating system for the built world.

    By combining AI workflows, predictive intelligence, and automated insights, OfficeSpace gives leaders a complete view of how their spaces are used and how people work. Facilities, IT, HR, and Real Estate teams use OfficeSpace to optimize space utilization, enhance employee experience, and reduce portfolio costs with precision.
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  • Award-Winning Medical Office Software Designed for Your Specialty Icon
    Award-Winning Medical Office Software Designed for Your Specialty

    Succeed and scale your practice with cloud-based, data-backed, AI-powered healthcare software.

    RXNT is an ambulatory healthcare technology pioneer that empowers medical practices and healthcare organizations to succeed and scale through innovative, data-backed, AI-powered software.
    Learn More
  • 1
    K-9 Mail

    K-9 Mail

    Open Source Email App for Android

    K-9 Mail is an advanced, open-source email client for Android that's focused on making it easy to chew through large volumes of email. It's designed to be easy to use by both novice and power users, with plenty of useful features. It has IMAP push email support, support for multiple accounts, support for POP3 and Exchange 2003/2007 (with WebDAV), flagging, filing, signatures and more! K-9 Mail also offers a light and dark theme, keyboard shortcuts and emoji support. Like man's best friend, K-9 Mail is an email client you can depend on, and will surely be your best friend when it comes to handling your emails!
    Downloads: 11 This Week
    Last Update:
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  • 2
    LogicMail for BlackBerry
    LogicMail is a standalone E-Mail client designed to run on RIM BlackBerry handheld devices, providing full support for IMAP, POP, and SMTP over the device's Internet connection. Its exists to provide an alternative to the service-oriented "push" E
    Downloads: 10 This Week
    Last Update:
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  • 3
    Columba
    Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization support. Its a powerful mail management tool with features to enhance your productivity and communication.
    Downloads: 12 This Week
    Last Update:
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  • 4
    CentraView - Browser based Enterprise Java (J2EE) Contact Management, Groupware, Collaboration, CRM, SFA, Project Management software. Run locally or as a hosted service. Built on Apache Tomcat, JBoss, MySQL, Linux (Fedora, RedHat and others) & Windows
    Downloads: 3 This Week
    Last Update:
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  • Collect! is a highly configurable debt collection software Icon
    Collect! is a highly configurable debt collection software

    Everything that matters to debt collection, all in one solution.

    The flexible & scalable debt collection software built to automate your workflow. From startup to enterprise, we have the solution for you.
    Learn More
  • 5
    zClipse is a project for building Eclipse (http://www.eclipse.org) plugins. Plugins currently being developed include: TabNavigator - editor enhancements; JScheme - Scheme integration; Insectivore - shared TeamTasks, integrated with Tasks view.
    Downloads: 8 This Week
    Last Update:
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  • 6
    Geedot aims to be a lightweight, fully (and only) HTML 4.01 and CSS compliant and functional web browser for X. It uses the gdtoolkit widget set which is very fast and lightweight - yet also infinitely and easily expandable.
    Downloads: 2 This Week
    Last Update:
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  • 7

    Java Email Spammer

    This application allows email spamming from gmail account.

    This application allows you to spam emails from your gmail account to any other destination. In the near future it will be possible to spam from different smtp server providers such as Google, Yahoo and more. Please support this application by visiting the official website at http://www.freejavaemailspammer.com
    Downloads: 2 This Week
    Last Update:
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  • 8
    data & video-conferencing, one shared whiteboard, send text messages (IM), transfer files(FTP),collaborate in real time,email capablities,Plays and stores dvd,cd and Mp3. Web-based Internet directory,Remote Desktop Share,File sharing program & browser
    Downloads: 2 This Week
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  • 9
    This program seeks to be a full featured mail client written in Java. Implemented are SMTP,IMAP and POP3 support, PGP encryptio
    Downloads: 2 This Week
    Last Update:
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  • Turn traffic into pipeline and prospects into customers Icon
    Turn traffic into pipeline and prospects into customers

    For account executives and sales engineers looking for a solution to manage their insights and sales data

    Docket is an AI-powered sales enablement platform designed to unify go-to-market (GTM) data through its proprietary Sales Knowledge Lake™ and activate it with intelligent AI agents. The platform helps marketing teams increase pipeline generation by 15% by engaging website visitors in human-like conversations and qualifying leads. For sales teams, Docket improves seller efficiency by 33% by providing instant product knowledge, retrieving collateral, and creating personalized documents. Built for GTM teams, Docket integrates with over 100 tools across the revenue tech stack and offers enterprise-grade security with SOC 2 Type II, GDPR, and ISO 27001 compliance. Customers report improved win rates, shorter sales cycles, and dramatically reduced response times. Docket’s scalable, accurate, and fast AI agents deliver reliable answers with confidence scores, empowering teams to close deals faster.
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  • 10
    jwma (java webmail app) uses jakarta mail (formerly javamail) to provide access to an imap email store. Multiple users can authenticate, read, send and manipulate email storage and persist a list of contacts, email identities and their own individual preferences. It works with email stored in mbox or maildir format or stored in a derby database; it has been tested with dovecot.james and exim4. See http://jwma.sourceforge.net/ for further details.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Spamato is a spam filter system that combines several anti-spam techniques, from which thousands of users benefit. It is available as an add-on for Thunderbird and Outlook, and as a stand-alone proxy for other email clients. IMAP and POP are supported.
    Downloads: 1 This Week
    Last Update:
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  • 12
    DKIM for JavaMail is a small JAR that can be easily implemented in existing Java projects using JavaMail for sending DKIM signed emails.
    Downloads: 1 This Week
    Last Update:
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  • 13
    Daffodil Organizer is an e-mail client with the facility to import mails from the Microsoft Outlook's .pst files. In Daffodil Organizer mails are stored in RDBMS that provides maximum flexibility to organize your mails. You can also categorise your mail
    Downloads: 1 This Week
    Last Update:
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  • 14
    EmailTray
    Emailtray is a tray icon software that monitorize and notify emails on Yahoo, AOL and Gmail accounts free and apps. Work without email client software because it use web interface.
    Downloads: 1 This Week
    Last Update:
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  • 15
    Open-Xchange collaboration suite. Visit http://www.open-xchange.com/header/community_area.html to get more information about getting support and reporting bugs.
    Downloads: 1 This Week
    Last Update:
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  • 16
    The OpenP2M is a software that lets you store and share files on your email account.
    Downloads: 1 This Week
    Last Update:
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  • 17
    Free Java Office suite on the Web.
    Downloads: 1 This Week
    Last Update:
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  • 18
    YaEC is a E-Mail Client like MS Outlook Express written in Java (Swing).
    Downloads: 1 This Week
    Last Update:
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  • 19
    The project was moved to http://mujmail.xf.cz/index.php !! an E-mail client for mobile devices supporting J2ME.
    Downloads: 0 This Week
    Last Update:
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  • 20
    This is a Java Email client for academic purpose. It will include the general email client features and other experimental techniques such as uncertain reasoning, HCI principles. This project is not supported now.
    Downloads: 0 This Week
    Last Update:
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  • 21
    A GUI-based email application capable of recording, compressing and sending voice messages.
    Downloads: 0 This Week
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  • 22
    Email2Fax and Fax2Email gateway for Asterisk, that could be integrated to your own existing Asterisk.
    Downloads: 0 This Week
    Last Update:
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  • 23
    CIMAP is a pared-down IMAP client for Java ME-enabled cell phones (MIDP 2.0/CLDC 1.1), intended mainly to complement the use of IMAP for implementing the GTD (Getting Things Done) personal management methodology.
    Downloads: 0 This Week
    Last Update:
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  • 24
    I often encountered an inability among users to think beyond SAP and MS. Goal of the project is to create a web based application management platform, which enables organisations to easily manage applications within the system.
    Downloads: 0 This Week
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  • 25
    This application is an email ( POP3/SMTP ) application built with eclipse 3.1.1. It shows the power of eclipse to build RCP apps. It is using the embedded version of Derby as the DBMS
    Downloads: 0 This Week
    Last Update:
    See Project
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